Changes v4 => v5: 1. Clean up and style change in 2/2. (Andrii) Changes v3 => v4: 1. Move mmap_unlock_work to task_iter.c to fix build for .config without !CONFIG_PERF_EVENTS. (kernel test robot <lkp@xxxxxxxxx>) Changes v2 => v3: 1. Avoid using x86 only function in selftests. (Yonghong) 2. Add struct file and struct vm_area_struct to btf_task_struct_ids, and use it in bpf_find_vma and stackmap.c. (Yonghong) 3. Fix inaccurate comments. (Yonghong) Changes v1 => v2: 1. Share irq_work with stackmap.c. (Daniel) 2. Add tests for illegal writes to task/vma from the callback function. (Daniel) 3. Other small fixes. Add helper bpf_find_vma. This can be used in some profiling use cases. It might also be useful for LSM. Song Liu (2): bpf: introduce helper bpf_find_vma selftests/bpf: add tests for bpf_find_vma include/linux/bpf.h | 1 + include/uapi/linux/bpf.h | 20 +++ kernel/bpf/btf.c | 5 +- kernel/bpf/mmap_unlock_work.h | 65 ++++++++++ kernel/bpf/stackmap.c | 80 ++---------- kernel/bpf/task_iter.c | 76 ++++++++++-- kernel/bpf/verifier.c | 34 +++++ kernel/trace/bpf_trace.c | 2 + tools/include/uapi/linux/bpf.h | 20 +++ .../selftests/bpf/prog_tests/find_vma.c | 117 ++++++++++++++++++ tools/testing/selftests/bpf/progs/find_vma.c | 69 +++++++++++ .../selftests/bpf/progs/find_vma_fail1.c | 29 +++++ .../selftests/bpf/progs/find_vma_fail2.c | 29 +++++ 13 files changed, 466 insertions(+), 81 deletions(-) create mode 100644 kernel/bpf/mmap_unlock_work.h create mode 100644 tools/testing/selftests/bpf/prog_tests/find_vma.c create mode 100644 tools/testing/selftests/bpf/progs/find_vma.c create mode 100644 tools/testing/selftests/bpf/progs/find_vma_fail1.c create mode 100644 tools/testing/selftests/bpf/progs/find_vma_fail2.c -- 2.30.2
